Straight-knitting machine.



W. P. ROLSTON. STRAIGHT KNITTING MACHINE.

APPLICATION FILED NOV. 4,1908.

Patented Jan. 80, 1912.

4 SHEETS-SHEET 1 mm am W. F. ROLSTON. STRAIGHT KNITTING MACHINE.

APPLICATION FILED NOVL L 1908.

Patented Jan. 30, 1912.

4 SHEETSSHEET 2.

W. P. BOLSTON.

STRAIGHT KNITTING MACHINE,

APPLICATION FILED NOVA, 1908.

' Y Patented Jan. 80,1912.

4 SHEETS-$111131 3.

mImmI W. P. ROLSTON. STRAIGHT KNITTING MACHINE.

APPLICATION FILED N0)? 4,1908.

Patented Jan. 30, 1912.

4 SHEETS SHEBT 4.

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STRAIGHT-KNITTING meme.

Patented Jan. 30,1912.

Application filed November 4,1908. Serial No. 461,082.

To all uihom it concern a citizen of theUnited .States, residing at Rockford, inthecounty of'Winnehago and State of lllinois,1have invented certain new my improvementsin connection therewith.

and useful Improvements in Straight-Knitting Machines, of which the following is a specification.

.The object of thisinvention is to providei a multiple yarn guide for straight knitting machines.in orderfthat two yarns may be me during the single movement or a earn.

slide.

.. In the accompanying .drawings; Figure 1.

is .aplan view of -astraight knitting machine to which my improvements have been applied, and-in :which the yarn guides are at .one'end .Ofctllflll' movement. Fig. a side elevation. ,Fig. 3 is a plan view .in

which the yarn guides are near :theother" end 10f their ..movement. Fig. 4 is [an end elevation. Fig. 5 is a vertical section of the upper portion of-the needlebeds-showing Fig. .6 is an isometrical representation of one of the latches for ,retainifngoneof. the yarn}.

guides .Fig. 7 is an isometrical viewof theyarn carriers and yarnguides. Fig. 8

is a diagrammatical view ofthe movements,

hoof the yarn guides during .a complete move- Inent back and forth over. the.needle,-beds.;"

The knitting machine shown in the draw-f ings'inthe main is of the straightu' variet'y .com rising the 'needle beds i1 .and

portlng the cam slides" 3 and lrespectiv'e yg Needles 5 are supported to..-moveinf-the needlebeds' in the usual manner. "The cam I slides 3 and teach support two cams 6 and 7, and ,8 :and 9 respectively. The. yarn changerlO is. of a well-known construction. Ihavenot deemed .itlnecessary to show the mechanism. for imparting movement to the cam slides or yarn changer as such is well understood in this class of machines.

A yarn carrier comprises the side bars 11 and .12connectedby the upturned end bar 13, .and two cross bars 14 supporting latch openers 15.01 the usual construction. These side bars are adapted to slide in ways formed in the up or portion of the needle -lbeds over the nee les. 'This yarn carrier is 'reciprocatedby its upturned end 13having a connection with the reciprocating bars 16 which are moved by the swinging link 17. Tothe side bar 12 is secured a guide bar 18 square in cross section, and this guide bar Be it known that I, WALTER F. RoLs'roN,

supports a yarn guide 19 having an eye 20 needles. Beneath the ends of the guide bar 18 arelocated stops .22. and 23.

To the side bar 11 is secured'aguide bar i ,24 supported upon-lithe end stops and 26.

This guide bar supports ayarn" guide 27 having an eye 28Ein one end. This .yarn

guide is adapted to slide on the guide bar.

Tothe ends of the giiidebar 24 are pivoted catches 29 and 30 respectively, each having adepending section 311"" A coiled spring 32 servesto hold the cathes yieldingly against the stops 33. To the bed 2' above the needles are secured-two spring catches 32L and 35 which are located in the travel of the depending sections 31 of the catches 29.and

'30, and tothe bed 2 are secured two stops 36 and 37 whichare located in the path .of

the movement of the yarn guide 27.

Inknitting, the yarn carrier is reciproflcated between the needlebeds land" 2 and immediately after the projection of the needles. 7

' At Fig. 1, the yarn guides 19 and 27 are in their starting position and .being'in line across the machine, .and at Fig. 8 is shown a diagrammatic'al .View of the yarn guides -1n the r dltferent .complete movement osi'tions in makinga ack. and forth over the needle beds. A u

The first movement of the yarn carrier will-be to carry the yarn guide 27 with it until itreaohes the second positioirFig. 8,

at which time the stop 23 will engage the I yarn guide 19 when the further movement ozt the yarn carrier will carry both yarn guides into the positions shown in third position Fig. '8, when the depending end 31 of the pivoted catch 29 will contact with the' spring catch 34 and release the catch from its engagement with the yarn guide 27, when the further movement of the'yarn carrier will carry theyarn guide 27 in contact with the stop 36. when it will'rem aineat rest. This movement of theya'i'tr e'arrier will carry the yarn guide 19 with sit untilit-reaches a position opposite the yarn guide 27 andcontact with the-pin 38, whe'nit will appear as shown in the fourth position Fig. 8. When the yarn guides arein the fourth position Fig. .8, the pivoted catch 30 will have engaged the yarn guide 27 thereby forming a connection-between this yarn guide and the .yarncarrier. When the yarn carrier is ready for its return movement, the first portion of which will carry the yarn guide 27 into the -fifth position. Fig. 8, when the sto 22 will contact with the yarn ide 19. his yarn guide 19 has been held $0111 movement with the yarn carrier by its end 21 contacting with the needle bed 1 The yarn carrier will carry both yarn guides into the sixth osi- 'tion Fig. '8, when the depending end the pivoted catch 30 will contact with the spring latch 35 and release the catch from its connection with the yarn guide 27, at the same time the yarn guide 27 will contact with 'thestop 37 and remain at rest until the v yarn carrier has broughtthe yarn guide 19 opposite it when it will, contact with'the pm 39. Thepivotedc'atch 29 will engage the yarn guide,27 and. the yarn guide willbe in the seventh'position Fig. 8, which corresponds to the first/ starting position.

I These. movements are repeatedat each complete movement bacli andforth between theneedle beds. In starting, th'

n carried by the yarn guide IZZ-swill travel' 'ahead of the yarn car-" riedby the yarn guide 19. The cams 6 and 9 move the "needles for the yarn carried by the yarn guide 27 and the'cams 7 and 8 move the needles tor the yarncarriedby the yarn guide 19.

: the yarn guide to different portions or said.

By this construction, two courses of knitting are accomplished by a single. complete movement of 'the cam slides, thereby doubling the output of the machine.

" I claim as m invention.

' 1. In a knitting machine, the combinatio with a support, of a reciprocatory actuating device thereon,- a yarn guide mounted on and carried by the actuating device, said actuating device being capable of movement with respect to the yarn guide, devices movable with the actuating device for securing actuating device, and means for automatically releasing theguide from the actuating devlce on' each reciprocatory stroke of said actuating device.

2. In a knitting machine, the combination with a reciprocatory actuating device, of a bar mounted .on the device lon 'tudmally thereof, a reciprocatory yarn gui e slidably mounted on the bar, a pair of oppositely disposed spring-pressed latches mounted on the actuating device and having hook portions that detachably engage over the guide to respectively move the same withthe actuating device in opposite directions, and means for automatically and alternately operating the latches to release the yarn guide;

3. In a knitting machine, the combination with a reciprocatorylactuating device, of a supporting bar mounted. thereonlongitudinally ofits line of movement, a yarn guide slidable on the supporting bar, latches carried'by the actuating device and detachably engaging the yarn guide when at the ends of the bar to secure the same against its sliding .movement thereon, and trips disends to the device, a yarn guide havin a box slidably mounted on the bar, latc es pivotally mounted on the ends of the bars and, having books that engage the yarn guide, said latches having downturned ends, and yielding stops mounted on the support and disposed in the path of movement of the downturned ends of the latches.

5. In a knitting machine, the combination with an. actuating devlce movable in opposite directions, of a supporting bar carried thereby, a yarn guide slidable on the supporting bar, stops carried by the actuating device and alternately engaging the yarn guide to move it with the actuating device in opposite directions, and means that engages the yarn guide to hold it stationary when disengaged from the stops.

. 6. In a knitting machine, the combination with a stationary support, of a reciproca- -tory actuating device .mountedon the sup port and having a supporting bar'thcreon disposed longitudinall of its line of movement, a yarn guide sli able on the bar, stops movable with the actuating device and al-' ternately engaging the yarn uide to move the same, and a friction bra e carried by the yarn guide and engaging the support for temporarily holdin the guide against movement until engaged by the stops.

7. In a knitting'machine, the combination with a stationary support, of a reciprocatory actuating device mounted on the support, a bar disposed longitudinally upon the support, stop blocks connecting the ends of the bar to the actuatin device, and supporting the former on t e latter, a yarn guide slidable on the bar and alternately engaged-by the stop blocks upon the reciprocation of the actuating device, and a frictionbrake carried by the yarn guide and engaging the support for holding said guide against movement when disengaged from the stop.

8. In a knitting machine, the combination with a reciprocatory' actuating device, of spaced tparallel bars mounted on o posite sides 0 the same, a yarn guide s idably mounted on each bar and each yarn ide being capable of movement past the other,

latches mounted on the actuating device at with a reciprocatory actuating device, of a, pair of yarn uides slidably mounted thereon, latches carried by the end portions of' the actuating device, they foremost latch being automatically engaged With one of the yarn guides, and stops carried by the'end portions of the actuating device, the rear stop always engaging the other yarn guide to' move the same in rear of the first-mentioned device.

10. Ina knitting machine, the combination with a reciprocatory actuating device having a pair of substantially parallel longitudinally disposed slide bars, of a pair 'ofyarn guides slidably mounted on the bars and being capable of movement past each other, latches located at the ends of one of the bars and detachably engaging the guide thereon to alternately hold the same at the foremost end of the bar, trips. disposed in the paths of movement of the latches. for actuatingthe same to release said guides,

stops located at the ends of the other bar for alternately engaging the other 'yarn guide to-move the same, and a friction brake to hold said-latter yarn guide against movement until engagedby the stops.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

WALTER F. ROLSTON. v Witnesses.

.A. O. BEHEL,

E. D. E. N. BEHEL. 

